9 Common Defects in using PVC Compound for Pipe Fittings Production
9 Common Defects and Detailed Solutions in PVC Compound Production for Pipe Fittings 1. Defect: Brittleness / Cracking Causes: Incomplete Fusion/Gelation. Insufficient amount of Impact Modifier or Plasticizer. Processing temperature is too low (insufficient energy for fusion). Using PVC resin with a very low K-value. Solutions: Enhance the use of Processing Aid (ACR) and Impact…
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HDPE – Key Technical Parameters and Practical Applications
HDPE (High-Density Polyethylene) is short for high-density polyethylene, a thermoplastic polymer belonging to the polyolefin family. Thanks to its low degree of molecular branching, HDPE has a high density (0.941–0.965 g/cm³), which gives it excellent mechanical strength, as well as high resistance to impact, chemicals, and moisture. HDPE has a hard, opaque white surface, is…
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Black PE Masterbatch – High-Performance Black Color Solution for Plastic Manufacturing
1. Introduction In the plastic industry, Black PE Masterbatch is one of the most important and commonly used color concentrates. It is produced by dispersing carbon black pigment into a polyethylene (PE) carrier resin, together with suitable dispersing agents and additives. This combination ensures excellent color consistency, superior UV protection, and outstanding processing performance. At US…
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What Is Biodegradable Hemp Plastic? Benefits and Applications
As plastic pollution becomes a global concern, the materials industry is rapidly shifting from traditional petroleum-based plastics to biodegradable alternatives. Among them, biodegradable hemp plastic – a plant-based plastic derived from hemp – has emerged as a highly promising green material thanks to its natural origin, fast biodegradability, and strong mechanical properties. It is considered…
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BOPP film and Application of Filler Masterbatch in BOPP film production
1. What is BOPP film? BOPP (Biaxially Oriented Polypropylene) is a kind of plastic film manufactured from polypropylene (PP) and stretched vertically and horizontally. Thanks to this stretching technology, BOPP has high strength, good transparency and outstanding moisture, gas and grease resistance. Nowadays, BOPP is one of the most popular packaging, which is used widely…
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Melt Flow Index of Plastics (MFI) – Definition, Significance and Applications
In the plastics industry, the Melt Flow Index (MFI) is one of the most important parameters used to evaluate the characteristics and processing behavior of plastic materials. Understanding MFI enables manufacturers to select suitable raw materials, maintain consistent quality, and optimize production efficiency. It serves as a critical indicator for predicting how a plastic resin…
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